The Study of Subtitle Translation Based on Multi-Hierarchy Semantic Segmentation and Extraction in Digital Video

As a set of visual, auditory and text information in one integrated media information, video plays an increasingly prominent role in people's lives. This paper established a reasonable and effective multi-hierarchy semantic information descriptive model based on video segmentation and extraction technology to realize the mapping of video semantic information from the low-level feature to high-level and meanwhile carried out the subtitle translation studies based on the technical level. The study shows that the model can well describe the service practice in subtitle translation in the premise of integration of video multi-modal information, based on the right segmentation and extraction of video object, on account of the consideration of each video object synchronization as well as temporal-spatial constraints related issues.